Skylight


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skylight

[′skī‚līt]
(astrophysics)
(engineering)
An opening in a roof or ship deck that is covered with glass or plastic and designed to admit daylight.

Skylight

An opening in a roof which is glazed with a transparent or translucent material used to admit natural or diffused light to the space below.

Skylight

 

(1) A usually round or polygonal structure with large window openings, situated atop a cupola or other type of roof and designed to provide illumination of the structure.

(2) A glassed-in section of a roof, designed to provide overhead illumination.

(3) A roof section in an industrial building, usually in the form of a superstructure with openings, designed to provide natural illumination and/or ventilation of the premises. Most skylights are rectangular in shape, but trapezoidal, gabled, triangular, and other designs are also used. Those providing illumination only or both illumination and ventilation feature casements with single or double windowpanes. If the skylight is not intended to provide ventilation, the casements are usually not designed to be opened; otherwise, remote-control mechanisms are used to open and close the casements. In addition to conventional skylight designs, commercial buildings are often equipped with overhead, chimney-like structures, the upper openings of which are approximately flush with the roof. This type of skylight has a support section mounted on a roofing slab or beam and a transparent or translucent cover in the form of a panel, dome, or arch. The cover may be made of plate or shaped glass, poly methyl methacrylate (organic glass), insulation glass units, or polyester fiber glass. Ventilation skylights are used mainly in buildings where considerable amounts of heat, gas, and dust are generated. They are usually equipped with wind-protection panels and sheet-steel casements that open and close.

REFERENCES

Drozdov, V. A. Fonari i okna promyshlennykh zdanii. Moscow, 1972.
Konstruktsii promyshlennykh zdanii. Edited by A. N. Popov. Moscow, 1972.

IU. P. ALEKSANDROV

skylight

skylight
In a roof, an opening which is glazed with a transparent or translucent material; used to admit diffused light to the space below. Compare with dome light. Also see hip skylight, lantern skylight, monitor skylight, pitched skylight, sawtooth skylight.
References in classic literature ?
What he could see then was only, close to the long chair on which she reclined, a pair of long, thin legs ending in black cloth boots tucked in close to the skylight seat.
Up the carpeted ladder she crawled at last and opened the door of the skylight room.
And in that Erebus of the skylight room, she slowly raised her heavy eyelids, and smiled.
For Billy Jackson was shining down on her, calm and bright and constant through the skylight.
Evidently the ambulance doctor was familiar with the location of skylight rooms.
I am going to climb over you to the roof--I am going to break the skylight, and give him some air
I struck at the skylight, and battered in the cracked, loosened glass at a blow.
The thought leaped through me like the fire leaping out of the shattered skylight.
if I had let a cylinder cover blow off through the skylight by my negligence Captain Falk couldn't have been more savage.
The tested skylight consisted of two horizontal divisions separated by a vertical muntin, each glazed with a single piece of glass.
Skylight was first staged at the National Theatre in 1995, winning an Olivier Award for best play.
He had just returned to the roof with another labourer after a lunch break when he stepped on a skylight, which broke and gave way.